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坑内开采引起地表塌陷和错动变形,对矿山建设和生产影响很大。一些矿山由于选取的陷落角、错动角依据不足,保护带宽度确定不合理,投产后发现工业场地及井筒处在地表错动范围内,直接危害地面设施和人身安全,将被迫留大量矿柱或采取其它措施。过去设计和生产中,是先选定错动角(陷落角)划出错动范围(陷落范围),再根据《冶金矿山设计参考资料》的规定,将建筑物、构筑物“布置在最终错动区外10～20
Pit mining caused surface subsidence and misplaced deformation, a great impact on the construction and production of mines. Due to the selection of the falling angle of some mines, the basis of the fault angle is not sufficient and the width of the protective belt is not determined properly. After putting into production, it is found that the industrial sites and the wellbore are located within the range of surface movement and directly endanger the ground facilities and personal safety and will be forced to leave a large amount of mines Column or take other measures. Design and production in the past, is the first choice of staggered angle (fall angle) to draw the wrong range (fall range), and then “metallurgical mining design reference” provisions, buildings, structures, "the final dislocation area Outside 10 ~ 20